Scalper for self-contained flour-mills.



L l. TREFZ.

SCALPER FOR SELF CONTAINED FLOUR MILLS.

APPLlcATloN FILED JULY 3.1916.

s SHEETS-SMU 1.

www

gmalmm i Paented June 5, ESN T.

J. j. TREFZ.

SGLPER Fos SELF commi@ fLouR MILLS.

APPLICATION FILED lULY 3, 19H5. y fi 955299 l @Q y Patented .Tune n, i917.

4 sHEEIsfsHEET 2.

J. l. TREFZ.

SCALPER FOR SELF CONTAINED FLOUR IVIILLS.

APPUCATION FILED luLY 3,19rs,

TL ,$299 l @9 Pnfemvd J 111,10, 5, 191'?.

4 SHEETS-SHEET 3.

J. I. TREFZ.

SCALPER FOR SELF CONTAINED FLOUR MILLS.

APPLICATION FILED )ULY 3,1915.

l ,229,1 69; Patented Jun@ 5, 1917.

4 SHEETS-SHEET 4.

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Syvum/Lto@ narran sirenas rar-@afar onirica JULIUS CTRITREFZ, OF OWENSBORO, KENTUlllI/TY',n ASSIGNOR TO THE ANGLO-AMERICAN MILL CO., OF OWENSBORO, KENTUCKY, A CORPORATION OF KENTUCKY.

SCALPER FOR SELF-CONTA'NED FLOUR-MILLS.

Patented linie 5, i917.

Ligging Mgg Specification of Letters Patent.

Application filed July 3, 1916. Serial No. 107,387.

To ZZ whom/'t may concern.' section receiving the grain, breaking it, and Be it known that I, JULiUs J. Timm, a then passingit to the dressing' or bolting citizen ol the United States, residing at section for separation, suitable conveying Uwensboi'o. in the county oi Daviess and means being provided, and customarily the titate'oi Kentucky, have invented new and stock is subjected to several sets ot bi'eak 60' usei'ul linprovenicnts in Scalpers for Selt'- rolls and reduction rolls, passing 'alternately Contained l `loiir-lldills, of which the folfrom the break section to the bolting sec'- lowing is a specification. tion, until complete reduction of the grain rihe present invention relates to flour and separation of the Hour, middlings and mills ot the self-contained type, and which bran has been effected. 65

are characterized by close assembling of Referring to the drawings by numbers, i milling and bolting instrunientalities, so like numbers indicating like parts in the that short system7 milling, which is now several views, l() indicates the niain frame largely in favor, may be eii'ected. of the break section, in which 'frame is i5 lt has particularly to do with the scalpmounted, in suitable bearings, the rst set 70 ing77 oiu the stock, which operation is the of break rolls 11, below which may be a sieving outI of the iner stock from the second set of break rolls 1Q, and additionally coarscr material preliminary to the finer the break section is provided with what are stock passing,` to the. bolting,l reels, and has known as reduction rolls (not shown) for 2o tor its object to provide a combination of inal treatment of the stock. Adjacent the 75 breaking, scalping, and bolting elements in fra-nie l() of the break section is the main which the scalping operation will be` quickly Jframe 13 of the bolting or dressing` section of and thoroughly performed in line with the the mill, and suitably mounted in this main general principles of short milling, and frame are the bolting reels, one reel 14 be which will relieve the bolting reels from exine,` shown in the present instance, this being 80 cessive wear, due to the silks being subjected the i'irst break bolting or dressing reel. to the action of unscalped stock. lVhen the stock comes from. the first break in ,the present disclosure I have shown rolls 11 it contains, of course, all oi the eletwo embodiment-s of my invention, `but it ments of wheat, .including the coarser parwill be understood that it may be niechaniticles, and various means have been pro- 85 callv varied from this illustrative disclosure, pOS'ed i i Separate out or scalp these coarser and Athat l do not restrict myself to the prepartiel es so that the reel would not be subcise expedients herein set forth. jected to the action of the heavier and y .in the drawings which accompany and Coarser material, which very quickly wears forni a part of this application. out the silks. lt has been'proposed to carry 90 Figure l is a view in side elevation ot so the product of the break lrolls directly to much ot a self-contained mill as is essential the bolting reel, pass them therethrough to an understanding of my invention. While subjecting them to a bolting action. Fig. 2 is an end view looking from the Scalp out the coarser particles at the vend of e@ lett et Fig. l. the reel farthest .from the break rolls, and 95 Figi'. 3 is a ,view partly in section showing return the tailings to the second break-rolls the scalper feed hopper. for further treatment, but this method is Fig. #i is a view in side elevation of the Open to the objection just stated, that the hopper shown in Fig. bolting reel is subjected throughout this Fig, 5S L5; a, Side elevation partly in section entire length to the action ot the coarse bran. 10o of a partot the mill showing a different -forni .it has been proposed further to provide a ot scalper. scalping sieve directly beneath the break Fie. 6 is an end View of the mechanism rolls in the roll section, and while this shown in Fig. et, looking` trom the right on tem is tar superior to thc other method it substantially the line (-G,` Fig. 5. is open tosoine objections which the present 105 ln mills of the seltcontaincd type, it is scalping' instrumentalities are designed to com mon to have two distinct sections nioiintovercome. y A Y @d Closely adjacent in the Cagng, one section .l have utilizedhthe fact' that u'iills o'l this being the break section, and the other the type are divided into distinct units, namely, dressing or bolting section, the break the breaking unit and the dressing; unit, to lio place the scalpen'intermediate the break section and the dressing section, where 1t may acty preliminarily on the stock coming from` materially decreased the conveyer flights necessary to return the tailings, as compared with those systems in which the stock is carried through the bolting reels; scalped at the tar end, and the tailings returned.

l accomplish this by l'ilacing between the Jframes l() and 1&3, as shown in Fig. '1, a scalping screen, which, in the form disclosed in l1`igs. 1 and 2, is a shaking screen 15 having a. suitable trame with grits gauze thereon, ythis screen being` mounted 'in the inclined position shown in Fig. 2, provided with suitable supports, and having also a vibrating mechanism to impart shaking movements to it, this vibrating mechanism being of any desired type, and so not described -in detail.

Just above the screen 15 is the feed hopper 16,' which feed hopper extends laterally across the screen, the hopper being` ot a length equal to the width ot' the screen snrace, so that equal distribution olz the material over the screen will be secured. '-Said hopper 1G has the inclined bottom 17, as shown in 11`ig. '3 and a hinged door or gate 18, which is normally held closed by the weighted lever 19 pivoted to a fixed part of the hopper, and provided with an adjustable weight so as tojvary the pressure neces sary to open the gate. With this construction stock delivered to the hopper will, when sutlicient quantity has aceunnilatml, force the gate open and maintain an even feed ot the stock from the hopper to the Screen 15.

The said hopper receives the end of a conveyer 20,' winch conveyer projects through a suitable trough 21 lying beneath the first break rolls 11, and as the stock comes from said break rolls 114 and is delivered to the trough 21 the eonveyer 20 therein will carry it forward and deliverit to thc hopper 16, which, through it` automaticallyoperating grate, will spread it in an even layer across the'screen 15, down the inclined surface of which it will pass. screening out the throughs,` whuhwill be carried by the conveyer 22 to the reel ll to be subjected to the dressing operation'.

The coarser material will vfall from the lower end ot the screen 15 to the trough 23 from which tliey are conveyed by couveyer 2l back to the roll .section of the mill, and delivered to a fall board down which they pass to the second break rolls 2G for further reduction.

In the forln ot' the invention shown in Figs. 5 and G the scalper is shown in the form ot' a cylinder 2T, this scalperl being 1ocated between the frames o1 the break section and the bolting section ot' the mill. The scalper 27 will be similar in. construction to al1-ordinary bolting or dressing reel having suitable heads or spiders Q8 and side bars to support the perforate material, uref crably grits gauze, 30. The scalper 27 will preferably be carried bythe conveyer shaft 35 which brii'igs the stock from the first break rolls, this conveyer shaft being` eX- tended and upon a bearing' in the main frame of the reel section of the mill, as shown in Fig. 5. rlhe scalper ree-l will be hooded or inclosed by the case 32, which hood has a. depending portion to form a receiving trough 33 for the throughs, in which trough is a conveyer 34 mounted on the extended end of the shaft 35 ot' the reel 36, so that the material bolted by the scalper will, by the conveyer S-l, be carried forward to the boltingl reel 36, At the delivery end ota the scalper reel 27 is an overtailsl spout 37 to' which, through the delivery orifice 38 of the scalpeireel, the scalped stock will be delivered. The said spout 3T delivers to an overtails conveyer 35). which ovcrtails conveyer returns the tailings to the break section ot' th'e mill, directing` them to a Jfall board l0, down which they pass to the second break rolls 1Q.

.lilith the construction above described a. very eliicient scalping oi the stockmay be secured, and at the proper point, for eliminating so tar as possible that part or" the stock it is undesirable xshould pass to the' dressers, namely, at a point immediately zitter the .lirst break rolls have acted on the grain. [t is' accomplished furthermore without increasing to any material degree the size ofthe mill, and without the neceslsity of any material alteration iu the instrumentalities now used tor short mill` ing, and the handling. of both the stock, the material to bey bolted in the `veel section, and the tailings. is reduced to short llights, the whole arrangement being such that de-l terioration of' the reel silks. by reason of the introduction to that section of coarse and heavy stock, is entirely done away with.

1t will be understood that while l have shown this scalping instrun'lentality only lin connect-ion with the first break rolls. where its use is desirable in the type of mill re'lerred to, l do not limit myself to this specific. location ot it. as it is obvious that the scalper may be used at any point, and in any relation to the breaking and holting instrumentalitites where'it is desirable to scalp oul of the product coming from the roll. section` and prior to passing to the bolting` section, `any part of the stock.

1. In a self-contained Hour mill having 'break section,

section, means 'means directly between the the usual break section and bolting section,

and intermediatesaid rolls and reel to scalp the stock coming from one set of break rolls, A

means to convey the stock from said break rolls to said scalper, means toconvey the throughs to said bolting reel, and means to return-thetailings to a second set of said break rolls. 1 y

' 3. In a selicontained Hour mill and inl combination, break rolls,

break and bolting sections of the mill toA scalp the-'stock coming from the break rolls, means t0 distribute the stock to said scalper, means to convey the stock from said break rolls to one set of said break rolls to said hopper,- 4means to convey the throughs to sald bolting reel, and means to return the tallings to said distributing means, and means to 'convey the throughsvto said'bolting reel.

el. In a self-contained flour mill and in combination, break rolls, a bolting reel, a

scalping screen directly between the break'.

and bolting-sections of the mill,.stock distributing means for said said distributing'means, and means to convey the thronghs to said bolting reel. l

5. Ina self-contained flour mill and in combination, a plurality of sets of break rolls, a boltingfreel, anA inclined scalping screen' directly between the break andbo'ltsubstantially ing sections of saidv mill, al distributing hopper having an automatic feed gate above said screen, means to convey the stock from a second set of said break rolls. 6. In a* self-contained flour mill and in combination, a plurality of sets of break Y `rolls,a vbolting reel, 1neans directly between the break-'and bolting sections of'said mill' to scalp the stock coming \from the break rolls,

rolls'to' convey the throughs to said bolting reel, and a conveyer toA return 'the tailings to a second setof said break rolls. f

7. In' a self-contained flourmill having 'said screen, means vsaid break rollsl to 'a bolting reel,

ing reel and means to scalper, means to convey *the stock from said break rolls to gate on'said hop break. rolls. l

a conveyer beneath said break rolleV delivering to said scalpingmeans, econveyer extending from said reel-'to said .break the usual break section and bolting section and 1n combination, break rolls in said break section, a bolting reel insaid bolting section, means dlrectly between said sections and intermediate said rolls and reel to scalp the stock coming from the break rolls,

means to convey the stock from said break rolls to said sbalper, and means to convey the throughs to said bolting reel'.

A 8. In a self-contained flour mill having the usual break break rolls, a bolting reel, an inclined scalping screen positioned between said sections intermediate said rolls and reel, a distributing hopper above said hopper, and means to convey the throughs to said bolting reel. 9. In a self-contained flour mill having thai usual break sectionA and bolting section an break rolls in said break section, a bolting reelin said bolting section, an inclined scalping screen located in the space between said break and bolting sections intermediate said rolls and'reel, a distributing hop- 85 per above said screen, means to convey the stock from said break rolls to said hopper, means to' convey the throughs to said boltreturn the tailings to a second `set of break rolls.

l0.l In a self-contained flour mill' having the lusual break section and-bolting section. and in combination, break rolls in said break section,a bolting reel in said bolting section, a vscreen located in the space be- 95 tween said sections intermediate said rolls andl reel to sealp'the stock coming from the break r'olls,-a distributing hopper extending laterally across .the screen Vand being of, the screen surface, anl automatic feed per, a trough beneath said break rolls leading to said hopper, a screw conveyer in said trough and hopper for Q feeding the stock from said screen, va conveyer beneath said Vbreak f rolls extending to said reel to convey the ,throughs to said bolting reel, and a conveyer to return the 'tailings-to saidrst set of In vtestimony whereof I have hereunto,l set my hand' in presence of two subscribing lwitnesses.- v A JULIUS l.' TREFZ. Witnesses: l

G. FURMA'N LITTLE, R.v I. TRIPLETT.

l section and bolting section 70 [and 1n combination,

to convey the stock from 1n combination, a plurality of sets of 80 of a length equal to the width the 'break 4rolls to 105 

